In truth, there are many conditions that can cause one to faint. However, in many cases, these conditions are extremely treatable. Here are four conditions that can cause dizziness, light-headedness and even fainting.
1. Low Blood Pressure
We regularly hear about the symptoms of high blood pressure. But low pressure has a range of symptoms all its own. Low blood pressure, also known as hypotension, can cause fainting. So just how is low blood pressure defined? A diagnosis of low blood pressure results when a reading of lower than 90 mm Hg systolic or 60 mm Hg diastolic occurs, according to the Mayo Clinic. The thing is that low blood pressure is different based on the person. A normal reading for one person may be low for someone else. That’s why it's important to know the symptoms. Further, low blood pressure can become extremely concerning when it falls rapidly. Just 20 mm Hg can cause dizziness and fainting when the brain fails to receive adequate blood supply. Life-threatening blood pressure changes can also happen because of infections, massive bleeding or allergic reactions.
Pregnancy, heart problems and endocrine issues have been known to cause low blood pressure. Low blood pressure can occur as a result of dehydration. This can cause hypovolemic shock, which may occur when low blood volume causes a sudden drop in blood pressure and oxygen reaching tissues. The condition can be fatal if left untreated. Medications like diuretics, alpha and beta blockers, and drugs for Parkinson’s disease can cause low blood pressure. And, of course, medications like Cialis and Viagra can cause a drop in blood pressure when combined with nitroglycerin. If low blood pressure is suspected, talk to a doctor. He or she can help control this condition.